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- Oracle Database 12c: Clusterware Administration and
- Oracle Database 12c: RAC Administration
- Oracle Database 12c: ASM Administration and
- Oracle Database Learning Subscription
Oracle 1z0-082: Oracle Database Administration 1 Exam Certification Path
The Oracle Certified Expert, Oracle Database 12c: RAC and Grid Infrastructure Administrator certification is for Database Development Systems Managers and Database Administrators with at least 1 year of RAC and Grid Infrastructure experience. It is also recommended to understand high availability concepts and clustering. To earn this certificate, you should have the ability to install, manage, monitor, and recover RAC databases, Clusterware, and ASM environments. You will get a complete understanding of the architecture of the Clusterware, ASM, and RAC databases while preparing for the exam. After earning this certification, you will gain the skills of installing, setup, backup and recovering, tuning, and monitoring these components. Self-study courses are great sources for the preparation of the Exam, but they do not meet the requirement of the training. To meet the requirement of the training course must be offered by Oracle University Training Center, Oracle Authorized Education Center, Oracle Authorized Partner, or Oracle Workforce Development Program. Courses can be a live virtual class, training on demand, learning subscription, or instructor-led in-class.
NEW QUESTION 83
A script abc.sql must be executed to perform a job.
A database user HR, who is defined in this database, executes this command:
$ sqlplus hr/hr@orcl @abc.sql
What will happen upon execution?
- A. The command succeeds and HR will be connected to the orcl and abc.sql databases
- B. The command succeeds and HR will be connected to the orcl database instance, and the abc.sql script will be executed
- C. The command fails and reports an error because @ is used twice
- D. The command fails because the script must refer to the full path name
Answer: B
Explanation:
Explanation
NEW QUESTION 84
A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?
- A. in the undo tablespace
- B. in the SYSAUX tablespace
- C. in the temporary tablespace
- D. in the PGA
- E. in the SGA
Answer: A
Explanation:
https://docs.oracle.com/database/121/ADMIN/undo.htm#ADMIN11478 (16.7)
NEW QUESTION 85
You execute this query:
SELECT TO_CHAR(NEXT_DAY(LAST_DAY(SYSDATE), 'MON'), 'dd "Monday for" fmMonth rrrr') What is the result?
- A. It returns the date for the first Monday of the next month
- B. It returns the date for the last Monday of the current month
- C. It generates an error
- D. It executes successfully but does not return any result
Answer: A
NEW QUESTION 86
Examine this command:
Which two statements are true?
- A. The "to" clause containing the new file name must be specified even if Oracle Managed Files (OMF) is used.
- B. It overwrites any existing file with the name SALES02.DBF.dbf in /u02 by default.
- C. Tables with one or more extents in this data file may be queried during the execution of this command.
- D. DML may be performed on tables with one or more extents in this data file during the execution of this command.
- E. Compressed objects in SALES01.DBF will be uncompressed In SALES02.DBF after the move.
Answer: C,D
NEW QUESTION 87
You need to calculate the number of days from 1st January 2019 until today.
Dates are stored in the default format of DD-MON-RR.
Which two queries give the required output? (Choose two.)
- A. SELECT ROUND(SYSDATE - '01-JAN-2019') FROM DUAL;
- B. SELECT SYSDATE - TO_DATE('01-JANUARY-2019') FROM DUAL;
- C. SELECT TO_CHAR(SYSDATE,'DD-MON-YYYY') - '01-JAN-2019' FROM DUAL;
- D. SELECT TO_DATE(SYSDATE, 'DD/MONTH/YYYY') - '01/JANUARY/2019' FROM DUAL;
- E. SELECT ROUND(SYSDATE - TO_DATE('01/JANUARY/2019')) FROM DUAL;
Answer: B,E
NEW QUESTION 88
You start your database instance in NOMOUNT state. Which two actions are performed?
- A. Memory is allocated for the SG1
- B. The consistency of the database is checked.
- C. All required background processes are started.
- D. SYS can access the database.
- E. The control files are opened.
Answer: A,C
NEW QUESTION 89
Examine the description of the EMPLOYEES table:
Which query is valid?
- A. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
- B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
- C. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
- D. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
Answer: B
NEW QUESTION 90
Your database instance is started with a PFILE.
Examine these parameters:
You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?
- A. It fails because the SCOPE clause is missing
- B. The value is changed only in the PFILE and takes effect at the next instance startup
- C. Change is applied to the current instance, but does not persist after instance restart
- D. The value is changed for the current instance and in the PFILE
Answer: C
Explanation:
Reference:
https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902
NEW QUESTION 91
Which two are true about shrinking a segment online? (Choose two.)
- A. To shrink a table it must have row movement enabled
- B. It always eliminates all migrated rows if any exist in the table
- C. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
- D. To shrink a table it must have a UNIQUE KEY constraint
- E. To shrink a table it must have a PRIMARY KEY constraint
- F. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
Answer: A,E
Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_3001.htm
NEW QUESTION 92
Which three statements are true about connection strings and service names used to connect to an Oracle database instance?
- A. A single connection string can refer to multiple database instances.
- B. A single database instance can support connections for multiple service names.
- C. A connection string must include the SID of a database Instance.
- D. A service name is created by a listener.
- E. A connection string including a service name must be defined in the cnsnames.ora file.
- F. Different connection strings in the same tnsnames.ora file can contain the same service name, host and port parameters.
Answer: A,B,F
NEW QUESTION 93
Which two are true about the roles? (Choose two.)
- A. A role must be disabled before it can be revoked from a user.
- B. The SET ROLE statement can be used once per session.
- C. The ALTER USER statement must be used to set specific default roles for a user.
- D. The SET ROLE statement enables as well as disables roles in a session.
- E. All privileges and roles granted to a user are enabled by default when the user logs in.
Answer: D,E
NEW QUESTION 94
Which two statements are true about the PMON background process? (Choose two.)
- A. It registers database services with all local and remote listeners known to the database instance
- B. It frees unused temporary segments
- C. It frees resources held by abnormally terminated processes
- D. It records checkpoint information in the control file
- E. It kills sessions that exceed idle time
Answer: A,C
Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14220/process.htm
NEW QUESTION 95
Evaluate these commands which execute successfully:
Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)
- A. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
- B. Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO
- C. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- D. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- E. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
Answer: A,C
NEW QUESTION 96
Evaluate these commands which execute successfully:
Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence?
(Choose two.)
- A. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
- B. Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO
- C. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- D. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- E. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
Answer: A,C
NEW QUESTION 97
Which two are true about shrinking a segment online? (Choose two.)
- A. To shrink a table it must have a PRIMARY KEY constraint
- B. To shrink a table it must have row movement enabled
- C. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
- D. It always eliminates all migrated rows if any exist in the table
- E. To shrink a table it must have a UNIQUE KEY constraint
- F. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
Answer: B,C
NEW QUESTION 98
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:
What must you do so that KING is authenticated by the OS when connecting to the database instance?
- A. Set OS_AUTHEN_PREFIX to OPS$
- B. Alter user KING to be IDENTIFIED EXTERNALLY
- C. Unset REMOTE_LOGIN_PASSWORDFILE
- D. Have the OS administrator add KING to the OSDBA group
- E. Grant DBA to KING
Answer: C
NEW QUESTION 99
In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:
Which statement is true?
- A. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
- B. Dynamic service registration cannot be used for this database instance
- C. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
- D. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
- E. The LREG process registers services dynamically with the LISTENER_1 listener
Answer: A
NEW QUESTION 100
Which two statements are true about the rules of precedence for operators? (Choose two.)
- A. The + binary operator has the highest precedence in an expression in a SQL statement
- B. Multiple parentheses can be used to override the default precedence of operators in an expression
- C. The concatenation operator | | is always evaluated before addition and subtraction in an expression
- D. Arithmetic operators with equal precedence are evaluated from left to right within an expression
- E. NULLS influence the precedence of operators in an expression
Answer: A,B
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm
NEW QUESTION 101
Which two statements are true regarding Oracle database space management within blocks managed by Automatic Segment Space Management (ASSM)? (Choose two.)
- A. A block will always be eligible for inserts if the row is short enough to fit into the block
- B. Insert operations always attempt to find blocks with free space appropriate to the length of the row being inserted
- C. PCTFREE defaults to 10% for all blocks in all segments for all compression methods
- D. ASSM assigns blocks to one of four fullness categories based on what percentage of the block is allocated for rows
- E. Update operations always attempt to find blocks with free space appropriate to the length of the row being updated
Answer: A,E
NEW QUESTION 102
You execute this command:
CREATE SMALLFILE TABLESPACE sales
DATAFILE '/u01/app/oracle/sales01.dbf
SIZE 5G
SEGMENT SPACE MANAGEMENT AUTO;
Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)
- A. Free space is managed using freelists
- B. It must be smaller than the smallest BIGFILE tablespace
- C. It is a locally managed tablespace
- D. It uses the database default blocksize
- E. Any data files added to the tablespace must have a size of 5 gigabytes
Answer: C,D
Explanation:
Explanation/Reference:
NEW QUESTION 103
You execute this command:
During the export operation, you detach from the job by using CTRL+C and then execute this command:
Export> STOP_JOB=immediate
Are you sure you wish to stop the job ([yes]/no): yes
Which two statements are true about the job? (Choose two.)
- A. It is paused and can be resumed
- B. You can reattach to it and monitor it
- C. You can no longer monitor it
- D. It terminates
- E. It continues to run in the background
Answer: C,D
Explanation:
Explanation/Reference: https://blog.oracle48.nl/killing-and-resuming-datapump-expdp-and-impdp-jobs/
NEW QUESTION 104
Your database instance was shut down normally and then started in NOMOUNT state. You then execute this command:
ALTER DATABASE MOUNT;
Which two actions are performed? (Choose two.)
- A. The control file is read
- B. The initialization parameter file is read
- C. The Oracle background processes are started
- D. The alert log records the execution details
- E. The online data files are opened
- F. The online redo logs are opened
Answer: A,D
Explanation:
http://facedba.blogspot.com/2014/07/oracle-database-startup-stages-and.html
NEW QUESTION 105
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